Your first build is the better but I have tweaked it a bit. I would not go with a third party to build for you, often has things you don't really need, lesser quality parts, you will get better fpr the money buying your own parts.
As the CPU is the last item you would want to upgrade in the future, changed to the fastest non K i5.
Up the MB to ATX Z97, actually cheaper.
Same spec RAM, bu blue, not that it matters to much as you don't have a windowed case.
Changed HDD, same performance, slightly quieter, cheaper.
Gone for a GTX 970 as it outperforms the R9 290, uses 100w less power, is cooler, > http://www.trustedre...n-r9-290_Page-5
Up the PSU, better quality, Corsair CS-M Series 550W > http://uk.hardware.i...sted-conclusion
You have not included an Optical Drive.
Some pats have been overidden, this is becase the lowest listed parts from, say Aria, work out more expensive when you add in the deliver charges.
A build for you to consider, > http://uk.pcpartpicker.com/p/9H7LLk